AMD Instinct MI300 could have an exascale APU mode with MCM packaging technology

Earlier reports claimed that the Instinct MI300 will feature 4 GPU chiplets, which is double the current MI200. This new information suggests that the MI300 could feature a Zen 4 chip. Source ExecutableFix has revealed a new “SH5” socket that AMD is reportedly preparing, internally named MI300.

AMD Instinct MI300 could have an exascale APU mode

MI300 also has references to the MI200 graphics accelerator, so sources claim that this Instinct accelerator could have a Zen 4 chip in the same package, at least some of its variants.

There is a server socket called “SH5” that has a CPU with CPUID 0xA80F00…. called “MI300”.

– ExecutableFix (@ExecuFix) September 16, 2021

This is not the first time exascale APUs have been discussed. In a paper titled “Design and Analysis of an APU for Exascale Computing”, AMD already gave a preview of the design of chips with HBM memories stacked on top of GPU and CPU chips.

The launch of the Instinct MI300 is not in the foreseeable future. Rumors point to 2022, so it’s too early to confirm the veracity of this information.

What is the BIG APU mode for MI200?

– 遠坂小町@Komachi (@KOMACHI_ENSAKA) December 26, 2019

Slowly, major graphics card manufacturers like AMD, Nvidia, and Intel are turning to chiplet and 3D stacking GPU design, which allows for more complex chips than ever before. In this way, the MI300 would add a lot of complexity as a GPU accelerator over the MI200. However, this information should be taken with a grain of salt.

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